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GPM GAG Data Format


File name

WFF-0003_PAD3-2015.gag

WFF         rain gauge network (in this case, WFF denotes Wallops Flight Facility Assorted Gauges) 
0003_PAD3   rain gauge ID 
2015        Year  
gag         Product ID (reformated gauge tip data) 

File header

2015 WFF 0003_PAD3 MetOne 0.2 mm

2015 WFF 0003_PAD3     same as in file name 
MetOne                 gauge type
0.2 mm                 gauge bucket size

Data format

Year Mon Day Jday Hr Min Sec Rain[mm]   Lat        Lon
........................................................
2015  01  03  003 23  34  27  0.200  37.93438  -75.47081
2015  01  04  004 00  37  11  0.200  37.93438  -75.47081
2015  01  04  004 11  15  09  0.200  37.93438  -75.47081
2015  01  04  004 11  16  39  0.200  37.93438  -75.47081
2015  01  04  004 11  16  48  0.200  37.93438  -75.47081
2015  01  04  004 11  16  57  0.200  37.93438  -75.47081
2015  01  04  004 11  17  07  0.200  37.93438  -75.47081
2015  01  04  004 11  17  19  0.200  37.93438  -75.47081
2015  01  04  004 11  17  29  0.200  37.93438  -75.47081
2015  01  04  004 11  17  40  0.200  37.93438  -75.47081
2015  01  04  004 11  17  48  0.200  37.93438  -75.47081
2015  01  04  004 11  17  58  0.200  37.93438  -75.47081
2015  01  04  004 11  18  09  0.200  37.93438  -75.47081
2015  01  04  004 11  18  20  0.200  37.93438  -75.47081
2015  01  04  004 11  18  30  0.200  37.93438  -75.47081
........................................................

There are 10 data fields. 
 1) year 
 2) month
 3) day of month
 4) Julian Day of year
 5) hour in UTC 
 6) minute 
 7) second 
 8) rain[mm]  (eg. 1 tip = 0.254 mm)
 9) Latitude  in degree
10) Longitude in degree